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llvm-mirror/test/Regression/CodeGen/X86/io.llx
John Criswell 43d7449301 Test for memory mapped I/O intrinsics.
llvm-svn: 12943
2004-04-14 13:52:56 +00:00

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; RUN: llvm-as < %s | llc -march=x86
implementation
declare int %llvm.readio (int *)
declare void %llvm.writeio (int, int *)
int %in(int * %p1) {
%p2 = alloca int
%i1 = call int %llvm.readio (int* %p1)
%i2 = call int %llvm.readio (int* %p2)
%r = add int %i1, %i2
ret int %r
}
void %out(int* %p) {
call void(int, int*)* %llvm.writeio (int 1, int * %p)
ret void
}